EP1707178A1 - Pasty dental alginate impression material composition - Google Patents
Pasty dental alginate impression material composition Download PDFInfo
- Publication number
- EP1707178A1 EP1707178A1 EP06005746A EP06005746A EP1707178A1 EP 1707178 A1 EP1707178 A1 EP 1707178A1 EP 06005746 A EP06005746 A EP 06005746A EP 06005746 A EP06005746 A EP 06005746A EP 1707178 A1 EP1707178 A1 EP 1707178A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- material paste
- base material
- weight
- setting
- alginate impression
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000463 material Substances 0.000 title claims abstract description 170
- FHVDTGUDJYJELY-UHFFFAOYSA-N 6-{[2-carboxy-4,5-dihydroxy-6-(phosphanyloxy)oxan-3-yl]oxy}-4,5-dihydroxy-3-phosphanyloxane-2-carboxylic acid Chemical compound O1C(C(O)=O)C(P)C(O)C(O)C1OC1C(C(O)=O)OC(OP)C(O)C1O FHVDTGUDJYJELY-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 229940072056 alginate Drugs 0.000 title claims abstract description 66
- 235000010443 alginic acid Nutrition 0.000 title claims abstract description 66
- 229920000615 alginic acid Polymers 0.000 title claims abstract description 66
- 239000000203 mixture Substances 0.000 title claims abstract description 44
- 235000011837 pasties Nutrition 0.000 title claims abstract description 36
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims abstract description 47
- 239000007788 liquid Substances 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 22
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000011591 potassium Substances 0.000 claims abstract description 22
- 229910052700 potassium Inorganic materials 0.000 claims abstract description 22
- 239000011734 sodium Substances 0.000 claims abstract description 22
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 22
- 239000000945 filler Substances 0.000 claims abstract description 20
- 229920001083 polybutene Polymers 0.000 claims abstract description 15
- 150000004676 glycans Chemical class 0.000 claims abstract description 13
- 229920001282 polysaccharide Polymers 0.000 claims abstract description 13
- 239000005017 polysaccharide Substances 0.000 claims abstract description 13
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 10
- 239000010452 phosphate Substances 0.000 claims abstract description 10
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 10
- 229920001285 xanthan gum Polymers 0.000 claims abstract description 10
- 235000010493 xanthan gum Nutrition 0.000 claims abstract description 10
- 239000000230 xanthan gum Substances 0.000 claims abstract description 10
- 229940082509 xanthan gum Drugs 0.000 claims abstract description 10
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims abstract description 9
- LUEWUZLMQUOBSB-FSKGGBMCSA-N (2s,3s,4s,5s,6r)-2-[(2r,3s,4r,5r,6s)-6-[(2r,3s,4r,5s,6s)-4,5-dihydroxy-2-(hydroxymethyl)-6-[(2r,4r,5s,6r)-4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-4,5-dihydroxy-2-(hydroxymethyl)oxan-3-yl]oxy-6-(hydroxymethyl)oxane-3,4,5-triol Chemical compound O[C@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1O[C@@H]1[C@@H](CO)O[C@@H](O[C@@H]2[C@H](O[C@@H](OC3[C@H](O[C@@H](O)[C@@H](O)[C@H]3O)CO)[C@@H](O)[C@H]2O)CO)[C@H](O)[C@H]1O LUEWUZLMQUOBSB-FSKGGBMCSA-N 0.000 claims abstract description 7
- 229920002581 Glucomannan Polymers 0.000 claims abstract description 7
- 229920002752 Konjac Polymers 0.000 claims abstract description 7
- 229920000161 Locust bean gum Polymers 0.000 claims abstract description 7
- 229940046240 glucomannan Drugs 0.000 claims abstract description 7
- 235000010485 konjac Nutrition 0.000 claims abstract description 7
- 235000010420 locust bean gum Nutrition 0.000 claims abstract description 7
- 239000000711 locust bean gum Substances 0.000 claims abstract description 7
- 244000215068 Acacia senegal Species 0.000 claims abstract description 6
- 229920002558 Curdlan Polymers 0.000 claims abstract description 6
- 239000001879 Curdlan Substances 0.000 claims abstract description 6
- 229920002148 Gellan gum Polymers 0.000 claims abstract description 6
- 229920002907 Guar gum Polymers 0.000 claims abstract description 6
- 229920000084 Gum arabic Polymers 0.000 claims abstract description 6
- 239000004373 Pullulan Substances 0.000 claims abstract description 6
- 229920001218 Pullulan Polymers 0.000 claims abstract description 6
- 229920002000 Xyloglucan Polymers 0.000 claims abstract description 6
- 235000010489 acacia gum Nutrition 0.000 claims abstract description 6
- 239000000205 acacia gum Substances 0.000 claims abstract description 6
- WQZGKKKJIJFFOK-VFUOTHLCSA-N beta-D-glucose Chemical compound OC[C@H]1O[C@@H](O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-VFUOTHLCSA-N 0.000 claims abstract description 6
- 235000010418 carrageenan Nutrition 0.000 claims abstract description 6
- 239000000679 carrageenan Substances 0.000 claims abstract description 6
- 229920001525 carrageenan Polymers 0.000 claims abstract description 6
- 229940113118 carrageenan Drugs 0.000 claims abstract description 6
- 235000019316 curdlan Nutrition 0.000 claims abstract description 6
- 229940078035 curdlan Drugs 0.000 claims abstract description 6
- 235000010492 gellan gum Nutrition 0.000 claims abstract description 6
- 239000000216 gellan gum Substances 0.000 claims abstract description 6
- 235000010417 guar gum Nutrition 0.000 claims abstract description 6
- 239000000665 guar gum Substances 0.000 claims abstract description 6
- 229960002154 guar gum Drugs 0.000 claims abstract description 6
- 229920001277 pectin Polymers 0.000 claims abstract description 6
- 239000001814 pectin Substances 0.000 claims abstract description 6
- 235000010987 pectin Nutrition 0.000 claims abstract description 6
- 235000019423 pullulan Nutrition 0.000 claims abstract description 6
- UHVMMEOXYDMDKI-JKYCWFKZSA-L zinc;1-(5-cyanopyridin-2-yl)-3-[(1s,2s)-2-(6-fluoro-2-hydroxy-3-propanoylphenyl)cyclopropyl]urea;diacetate Chemical compound [Zn+2].CC([O-])=O.CC([O-])=O.CCC(=O)C1=CC=C(F)C([C@H]2[C@H](C2)NC(=O)NC=2N=CC(=CC=2)C#N)=C1O UHVMMEOXYDMDKI-JKYCWFKZSA-L 0.000 claims abstract description 6
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 10
- 239000000194 fatty acid Substances 0.000 claims description 10
- 229930195729 fatty acid Natural products 0.000 claims description 10
- 150000004665 fatty acids Chemical class 0.000 claims description 10
- 229940057995 liquid paraffin Drugs 0.000 claims description 10
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 claims description 9
- WWZKQHOCKIZLMA-UHFFFAOYSA-N Caprylic acid Natural products CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 claims description 9
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 claims description 9
- 150000003839 salts Chemical class 0.000 claims description 7
- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical compound CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 claims description 6
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 claims description 6
- 239000004215 Carbon black (E152) Substances 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- QMVPMAAFGQKVCJ-UHFFFAOYSA-N citronellol Chemical compound OCCC(C)CCC=C(C)C QMVPMAAFGQKVCJ-UHFFFAOYSA-N 0.000 claims description 6
- 125000004122 cyclic group Chemical group 0.000 claims description 6
- DMEGYFMYUHOHGS-UHFFFAOYSA-N cycloheptane Chemical compound C1CCCCCC1 DMEGYFMYUHOHGS-UHFFFAOYSA-N 0.000 claims description 6
- DIOQZVSQGTUSAI-UHFFFAOYSA-N decane Chemical compound CCCCCCCCCC DIOQZVSQGTUSAI-UHFFFAOYSA-N 0.000 claims description 6
- SNRUBQQJIBEYMU-UHFFFAOYSA-N dodecane Chemical compound CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 claims description 6
- 150000002191 fatty alcohols Chemical class 0.000 claims description 6
- ZSIAUFGUXNUGDI-UHFFFAOYSA-N hexan-1-ol Chemical compound CCCCCCO ZSIAUFGUXNUGDI-UHFFFAOYSA-N 0.000 claims description 6
- 229930195733 hydrocarbon Natural products 0.000 claims description 6
- 150000002430 hydrocarbons Chemical class 0.000 claims description 6
- 239000002904 solvent Substances 0.000 claims description 6
- BGHCVCJVXZWKCC-UHFFFAOYSA-N tetradecane Chemical compound CCCCCCCCCCCCCC BGHCVCJVXZWKCC-UHFFFAOYSA-N 0.000 claims description 6
- RSJKGSCJYJTIGS-UHFFFAOYSA-N undecane Chemical compound CCCCCCCCCCC RSJKGSCJYJTIGS-UHFFFAOYSA-N 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 150000002148 esters Chemical class 0.000 claims description 4
- 239000000347 magnesium hydroxide Substances 0.000 claims description 4
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 4
- 239000000395 magnesium oxide Substances 0.000 claims description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 4
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 4
- ALSTYHKOOCGGFT-KTKRTIGZSA-N (9Z)-octadecen-1-ol Chemical compound CCCCCCCC\C=C/CCCCCCCCO ALSTYHKOOCGGFT-KTKRTIGZSA-N 0.000 claims description 3
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 claims description 3
- QMVPMAAFGQKVCJ-SNVBAGLBSA-N (R)-(+)-citronellol Natural products OCC[C@H](C)CCC=C(C)C QMVPMAAFGQKVCJ-SNVBAGLBSA-N 0.000 claims description 3
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 claims description 3
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 claims description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims description 3
- 239000005642 Oleic acid Substances 0.000 claims description 3
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000002202 Polyethylene glycol Substances 0.000 claims description 3
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 3
- OBETXYAYXDNJHR-UHFFFAOYSA-N alpha-ethylcaproic acid Natural products CCCCC(CC)C(O)=O OBETXYAYXDNJHR-UHFFFAOYSA-N 0.000 claims description 3
- 230000002421 anti-septic effect Effects 0.000 claims description 3
- 235000019445 benzyl alcohol Nutrition 0.000 claims description 3
- GONOPSZTUGRENK-UHFFFAOYSA-N benzyl(trichloro)silane Chemical compound Cl[Si](Cl)(Cl)CC1=CC=CC=C1 GONOPSZTUGRENK-UHFFFAOYSA-N 0.000 claims description 3
- JGQFVRIQXUFPAH-UHFFFAOYSA-N beta-citronellol Natural products OCCC(C)CCCC(C)=C JGQFVRIQXUFPAH-UHFFFAOYSA-N 0.000 claims description 3
- 235000000484 citronellol Nutrition 0.000 claims description 3
- 239000003086 colorant Substances 0.000 claims description 3
- GPTJTTCOVDDHER-UHFFFAOYSA-N cyclononane Chemical compound C1CCCCCCCC1 GPTJTTCOVDDHER-UHFFFAOYSA-N 0.000 claims description 3
- 239000000645 desinfectant Substances 0.000 claims description 3
- 239000010440 gypsum Substances 0.000 claims description 3
- 229910052602 gypsum Inorganic materials 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 3
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 claims description 3
- 239000003350 kerosene Substances 0.000 claims description 3
- RLSSMJSEOOYNOY-UHFFFAOYSA-N m-cresol Chemical compound CC1=CC=CC(O)=C1 RLSSMJSEOOYNOY-UHFFFAOYSA-N 0.000 claims description 3
- 229940100630 metacresol Drugs 0.000 claims description 3
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 claims description 3
- FUZZWVXGSFPDMH-UHFFFAOYSA-N n-hexanoic acid Natural products CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 claims description 3
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 claims description 3
- XMLQWXUVTXCDDL-UHFFFAOYSA-N oleyl alcohol Natural products CCCCCCC=CCCCCCCCCCCO XMLQWXUVTXCDDL-UHFFFAOYSA-N 0.000 claims description 3
- 229940055577 oleyl alcohol Drugs 0.000 claims description 3
- 239000002304 perfume Substances 0.000 claims description 3
- 229920001223 polyethylene glycol Polymers 0.000 claims description 3
- 229920001451 polypropylene glycol Polymers 0.000 claims description 3
- 239000004094 surface-active agent Substances 0.000 claims description 3
- OYHQOLUKZRVURQ-NTGFUMLPSA-N (9Z,12Z)-9,10,12,13-tetratritiooctadeca-9,12-dienoic acid Chemical compound C(CCCCCCC\C(=C(/C\C(=C(/CCCCC)\[3H])\[3H])\[3H])\[3H])(=O)O OYHQOLUKZRVURQ-NTGFUMLPSA-N 0.000 claims description 2
- 238000002156 mixing Methods 0.000 abstract description 21
- 238000000926 separation method Methods 0.000 abstract description 18
- 238000004898 kneading Methods 0.000 description 10
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 8
- 239000012153 distilled water Substances 0.000 description 7
- 239000000843 powder Substances 0.000 description 7
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 description 6
- 235000010413 sodium alginate Nutrition 0.000 description 6
- 239000000661 sodium alginate Substances 0.000 description 6
- 229940005550 sodium alginate Drugs 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 238000001556 precipitation Methods 0.000 description 5
- 229910000029 sodium carbonate Inorganic materials 0.000 description 4
- 239000005909 Kieselgur Substances 0.000 description 3
- 210000000214 mouth Anatomy 0.000 description 3
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 2
- 239000005708 Sodium hypochlorite Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 description 2
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 2
- 239000001488 sodium phosphate Substances 0.000 description 2
- 229910000162 sodium phosphate Inorganic materials 0.000 description 2
- 229940048086 sodium pyrophosphate Drugs 0.000 description 2
- 235000019818 tetrasodium diphosphate Nutrition 0.000 description 2
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 2
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 2
- 241001474374 Blennius Species 0.000 description 1
- 240000007124 Brassica oleracea Species 0.000 description 1
- 235000003899 Brassica oleracea var acephala Nutrition 0.000 description 1
- 235000011301 Brassica oleracea var capitata Nutrition 0.000 description 1
- 235000001169 Brassica oleracea var oleracea Nutrition 0.000 description 1
- 229920000298 Cellophane Polymers 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 229920002683 Glycosaminoglycan Polymers 0.000 description 1
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical group CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 1
- OYHQOLUKZRVURQ-HZJYTTRNSA-N Linoleic acid Chemical compound CCCCC\C=C/C\C=C/CCCCCCCC(O)=O OYHQOLUKZRVURQ-HZJYTTRNSA-N 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- -1 Polyoxyethylene Polymers 0.000 description 1
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229920006397 acrylic thermoplastic Polymers 0.000 description 1
- 150000005215 alkyl ethers Chemical class 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000002978 dental impression material Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229930182830 galactose Natural products 0.000 description 1
- 235000020778 linoleic acid Nutrition 0.000 description 1
- OYHQOLUKZRVURQ-IXWMQOLASA-N linoleic acid Natural products CCCCC\C=C/C\C=C\CCCCCCCC(O)=O OYHQOLUKZRVURQ-IXWMQOLASA-N 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920001748 polybutylene Polymers 0.000 description 1
- NROKBHXJSPEDAR-UHFFFAOYSA-M potassium fluoride Chemical compound [F-].[K+] NROKBHXJSPEDAR-UHFFFAOYSA-M 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid group Chemical group S(O)(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- ISXSCDLOGDJUNJ-UHFFFAOYSA-N tert-butyl prop-2-enoate Chemical compound CC(C)(C)OC(=O)C=C ISXSCDLOGDJUNJ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K6/00—Preparations for dentistry
- A61K6/90—Compositions for taking dental impressions
Definitions
- the present invention relates to a pasty dental alginate impression material composition used for obtaining the impressions of an oral cavity in a dentistry, which comprises a base material paste composed mainly of an alginate and water and a setting material paste composed mainly of calcium sulfate and a liquid component which is not reacted with the calcium sulfate.
- a pasty dental alginate impression material composition is a mixture made by mixing the same base material paste and the same setting material paste
- fluidity of this composition can be changed by changing a mixing ratio of the base material paste and the setting material paste at the time of kneading.
- this composition can give the sufficient working time, while it has excellent setting ability, furthermore, the setting time is not delayed, and the liquid separation does not occur during storage.
- a dental alginate impression material using alginate has been widely used as the impression material for obtaining the impression of the oral cavity at the time of producing a dental prosthesis.
- the dental alginate impression material the following three types have been used.
- a first type is made by mixing and kneading water and powders composed mainly of alginate, a gelatinizing reactant, a gelatinizing regulator and a filler, to thereby set those
- a second type is made by mixing and kneading alginate, the gelatinizing regulator, the filler and water with a gelatinizing reactant powder.
- the pasty dental alginate impression material comprises the base material paste and the setting material paste, where the base material paste is generally made by mainly dissolving alginate with water, and adding a filler powder for giving formability and hardness, and the setting material paste mainly comprises calcium sulfate as a setting material of alginate and the liquid component, which is not reacted with the calcium sulfate such as liquid paraffin.
- the powdery dental alginate impression material made by mixing and kneading powders and water is most widely used.
- this impression material it is necessary to measure the powders and water and knead mainly by hands.
- this powdery dental alginate impression material even though it is complicated, fluidity of the mixture can be changed by changing the mixing ratio of the powders and water in accordance with the clinical case or the preference of an operator. This is a frequently using method for daily clinical, and is one reason why the powdery dental alginate impression material is widely used.
- the pasty dental alginate impression material the following material has been used (for example, refer to Japanese Patent Application Laid Open No. 2002-87922 ) .
- It is a material comprising a base material paste and a setting material past, in which the base material paste is composed mainly of alginate, water and filler and the setting material paste is composed mainly of calcium sulfate and a liquid component.
- the base material paste contains a predetermined amount of specific polysaccharides, and the setting material paste contains a predetermined amount of polybutene.
- This pasty dental alginate impression material composition can be automatically kneaded by a special machine, so that it becomes to be widely used.
- this pasty dental alginate impression material is a paste-like one, it is easy for kneading. Further, since anyone can obtain the mixture having the fixed quality, there is a remarkable advantage that a problem does not occur at the time of obtaining the impression. Furthermore, since this material can be kneaded continuously by the special machine to be pushed out to a tray for impression directly, the work burden to a dentist or a hygienist can be reduced.
- the pasty dental alginate impression material has a problem that the working time is insufficient and an accident in taking impression occurs.
- the reason why the accident occurs is as follows. If the sufficient working time is kept on clinical, since the pasty dental alginate impression material is set slowly as compared with the powdery dental alginate impression material, the holding time in the mouth becomes long. So, the problem occurs. Furthermore, there is a problem that the fillers in the base material paste are precipitated during storage to thereby make the liquid separation. If the liquid separation occurs, the hardness and the fluidity of a set material are changed during use of it after kneading. As a result of this, the impression becomes easily incomplete.
- a primary objective of the present invention is to solve the problems of the pasty dental alginate impression material comprising the base material paste and the setting material paste, which is used now.
- the problems to be solved are as follows.
- the fluidity of the mixture cannot be changed even when the mixing ratio is changed, unlike the powdery dental alginate impression material obtained by mixing and kneading the powders and water.
- the sufficient operation surplus time cannot be kept due to the setting ability, and the liquid separation occurs during storage due to the precipitation of the filler in the base material paste.
- the earnest work was carried out in order to solve the above-mentioned problems and, as a result of this, the followings were found out.
- the conventional pasty dental alginate impression material since the filler is contained in the base material paste composed mainly of alginate and water, the liquid separation occurs during storage due to the precipitation of the filler in the base material paste, and the fluidity of the mixture cannot be changed even when the mixing ratio is changed. Then, the followings were found out to complete the present invention.
- the filler is removed from the base material paste, and the predetermined amount of the specific polysaccharides is added to the base material paste instead of the filler to thereby regulate the fluidity. Then, the fluidity can be changed by changing the mixing ratio of the base material paste and the setting material paste.
- the filler since the filler is not contained, the problem that the liquid separation occurs due to the precipitation of the filler can be solved. Furthermore, carbonate of sodium or potassium is used in the base material paste as a retarder, and phosphate of sodium or potassium is used in the setting material paste as a retarder. Then, the problem of the operation surplus time can be solved.
- the present invention is a pasty dental alginate impression material composition
- a base material paste composed mainly of 1-20 % by weight of alginate and water
- a setting material paste composed mainly of 10-60 % by weight of calcium sulfate and a liquid component which is not reacted with the calcium sulfate.
- the base material paste does not contain a powdery filler substantially, but contains 0.01-5 % by weight of carbonate of sodium or potassium as a retarder, and 0.01-15 % by weight of one or more polysaccharides selected from carrageenan, pullulan, curdlan, xanthan gum, gellan gum, pectin, konjak glucomannan, xyloglucan, guar gum, gum Arabic and locust bean gum.
- the setting material paste contains 0.01-10 % by weight of phosphate of sodium or potassium as a retarder, and 0.5-30 % by weight of polybutene.
- the alginate in the base material paste is one or more kinds of alginate of sodium, potassium, ammonium or triethanolamine.
- the liquid component, which is not reacted with the calcium sulfate, in the setting material paste is one or more kinds of a group selected from hydrocarbon, fatty alcohol, cyclic alcohol, fatty acid, a salt or an ester of this fatty acid, and a nonaqueous solvent.
- the hydrocarbon comprises decane, undecane, dodecane, tetradecane, kerosene, 1-octene, cycloheptane, cyclononane, or liquid paraffin.
- the fatty alcohol comprises 1- hexanol, 1- octanol, citronellol, or oleyl alcohol.
- the cyclic alcohol comprises benzyl alcohol or meta-cresol .
- the fatty acid comprises hexanoic acid, octanoic acid, oleic acid or linoleic acid.
- the nonaqueous solvent comprises polyethyleneglycol or polypropyleneglycol.
- calcium sulfate in the setting material paste it is preferable to be one or more kinds of anhydrous gypsum, hemihydrate gypsum and dehydrate gypsum.
- polybutene it is preferable to have number average molecular weight of 300 to 4000.
- the base material paste may further contain one or more kinds of various inorganic or organic coloring agents, an antiseptic, various disinfectants, and a perfume. Further, the setting material paste may further contain one or more kinds of a pH controlling agent such as magnesium oxide or hydroxide, a surfactant and the fluoride.
- a pH controlling agent such as magnesium oxide or hydroxide, a surfactant and the fluoride.
- the pasty dental alginate impression material composition according to the present invention is used by mixing and kneading the base material paste and the setting material paste, the fluidity can be changed by changing the mixing ratio of the base material paste and the setting material paste, the sufficient working time can be kept while it has sharp setting and, since the filler is contained in the base material paste, the liquid separation due to the precipitation of the filler does not occur during storage.
- this pasty dental alginate impression material composition is excellent.
- the alginate used in the base material paste of the pasty dental alginate impression material composition one or more kinds of a water-soluble salt can be used, where the salt is, for example, alginate of sodium, potassium, ammonium, triethanolamine or the like. Further, the content of these salts is 1-10 % by weight in the base material paste.
- the water used in the base material paste may be ion-exchanged water, distilled water or the like, or may be the water which is disinfected by sodium hypochlorite or the like.
- the filler such as silica, diatomaceous earth or the like is contained in order to control the fluidity of the mixture and suitably keep the hardness of the set material.
- the fluidity of the mixture can be kept in the fixed state by the filler.
- the mixing ratio of the base material paste and the setting material paste is changed for changing the fluidity of the mixture, the fluidity of the mixture is hardly changed.
- the filler is removed from the base material paste, and one or more kinds of the polysaccharides selected from carrageenan, pullulan, curdlan, xanthan gum, gellan gum, pectin, konjak glucomannan, xyloglucan, guar gum, gum Arabic and locust bean gum are added. Further, 0.01-5 % by weight of carbonate of sodium or potassium is added as the retarder. Then, the fluidity of the mixture can be suitably kept and also can be changed by changing the mixing ratio of the base material paste and the setting material paste in the same composition in accordance with the clinical case or the preference of an operator.
- the polysaccharides are stable in an alginate aqueous solution and hardly decomposed, so that the viscosity of the base material paste is hardly decreased.
- carrageenan is one kind of seaweed polysaccharides and an acid polymer comprising galactose containing a sulfuric acid group or an anhydro group.
- the pullulan, the curdlan, the xanthan gum and the gellan gum are obtained by separating and refining the polysaccharides produced by a microorganism such as a yeast or the like.
- the xanthan gum is the most useful and is mucopolysaccharides produced by a germ separated from leaf surface of cabbage.
- the polysaccharides such as pectin, konjak glucomannan, xyloglucan, guar gum, gum Arabic and locust bean gum are extracted from a bark, seeds, leaves and stalks, an underground stem or fruit of a plant. It is necessary that 0.01-15 % by weight of one or more kinds of polysaccharides selected from carrageenan, pullulan, curdlan, xanthan gum, gellan gum, pectin, konjak glucomannan, xyloglucan, guar gum, gum Arabic and locust bean gum are contained in the base material paste composed mainly of the alginate and water.
- the content is less than 0.01 % by weight, the viscosity of the base material paste is too low, so that it can not be used as the impression material. If content is more than 15 % by weight, the viscosity becomes too high, so that it is hardly kneaded to cause the problem in the taking impression operation. Preferably, the content is 0.1 to 3 % by weight.
- calcium sulfate used in the setting material paste of the pasty dental alginate impression material composition according to the present invention more particularly, the anhydrous gypsum, the hemihydrate gypsum, the dehydrate gypsum or the like can be used.
- the hydrocarbon As the liquid component which is not reacted with the calcium sulfate used in the setting material paste, the hydrocarbon, a fatty alcohol, a cyclic alcohol, a fatty acid, a salt or an ester of this fatty acid, and a nonaqueous solvent can be used.
- the hydrocarbon such as decane, undecane, dodecane, tetradecane, kerosene, 1-octene, cycloheptane, cyclononane or liquid paraffin
- the fatty alcohol such as 1- hexanol, 1- octanol, citronellol or oleyl alcohol
- the cyclic alcohol such as benzyl alcohol or meta-cresol
- the fatty acid such as hexanoic acid, octanoic acid, oleic acid or linoleic acid, a salt or an ester of these fatty acids and the nonaqueous solvent such as polyethyleneglycol or polypropyleneglycol are suitably used.
- the polybutene used in the setting material paste when the phosphate of sodium or potassium described below is added, the curing ability is increased and the sufficient working time can be kept. Further, polybutene prevents occurrence of the liquid separation due to the precipitation of the calcium sulfate in the setting material paste, so that it can prevent decrease of the setting ability.
- the polybutene is a liquid polymer where isobutylene as a base material and a few 1-butene are copolymerized. Polybutene having the number average molecular weight of 300 to 4000 is generally used. It is necessary that 0.5-30 % by weight of the polybutene is contained in the setting material paste. If the content is less than 0.5 % by weight, the liquid component is separated. If the content is more than 30 % by weight, the setting time becomes remarkably long under coexistence of the phosphate of sodium or potassium, and the hardness of the set material is decreased. Preferably, the content is 0.5 to 15 % by weight.
- the pasty dental alginate impression material composition according to the present invention contains 0.01-5 % by weight of carbonate of sodium or potassium in the base material paste, and 0.01-10 % by weight of phosphate of sodium or potassium in the setting material paste, where the base material paste is composed mainly of 1-20 % by weight of alginate and water, and the setting material paste is composed mainly of 10-60 % by weight of calcium sulfate and the liquid component which is not reacted with the calcium sulfate.
- the base material paste is composed mainly of 1-20 % by weight of alginate and water
- the setting material paste is composed mainly of 10-60 % by weight of calcium sulfate and the liquid component which is not reacted with the calcium sulfate.
- the pasty dental alginate impression material composition according to the present invention may, in the range in which the characteristics are not lost, contain various kinds of inorganic or organic coloring agents, an antiseptic, various kinds of disinfectants, a perfume or the like, in the base material paste thereof . Further, it may contain magnesium oxide, a pH controlling agent such as magnesium oxide or hydroxide or the like, a surfactant for increasing the mixing ability with the base material paste, a fluoride for improving a model surface.
- Base material paste Sodium alginate 13 (% by weight) Distilled water 74.98 Locust bean gum 12 Sodium carbonate 0.02 Setting material paste Calcium sulfate hemihydrate 50 (% by weight) Liquid paraffin 49 Polybutene 0.5 (a number average molecular weight: 3900) Sodium phosphate 0.5
- each of the above pastes was sufficiently mixed by a mixer to thereby obtain a pasty dental alginate impression material composition.
- the fluidity was measured by the steps of kneading the base material paste and the setting material paste at the volume ratio of 1 : 1 and 3 : 1; inserting a pushing out rod into a pushing out ring from the lower side to the position of the reference line, filling the kneaded sample in the pushing out ring; eliminating an excess heaped above the upper surface of the pushing out ring by a spatula; reversing the pushing out ring after 30 seconds; pushing out the sample gradually and perpendicularly on an acrylics board by the pushing out rod; measuring a maximum part and a minimum part of a spread of the sample by a caliper when it isgelled; and thereby measuring the fluidity from an average of the measured maximum parts and minimum parts.
- the pushing out rod had the outer diameter of 35 mm, a reference line on the position of 20 mm from the upper side, and a cellophane film adhered thereon.
- the pushing out ring had the inner diameter of 35 mm and the height of 50 mm. Then, in each ratio, the working time was measured according to the ISO 1563, and the setting time (the gelling time) was measured according to the ISO 1563. After the base material paste was filled in an aluminum packaging material and kept at 60°C for one week, a state of the liquid separation was observed visually. These results were shown in Table 1 collectively.
- Base material paste Sodium alginate 10 (% by weight) Distilled water 89.78 Konjak glucomannan 0.02 Sodium carbonate 0.2 Setting material paste Calcium sulfate hemihydrate 60 (% by weight) Liquid paraffin 5 Polybutene 28 (a number average molecular weight: 390) Sodium phosphate 7
- Base material paste Sodium alginate 7 (% by weight) Distilled water 91.3 Xanthan gum 1.5 Sodium carbonate 0.2 Setting material paste Calcium sulfate hemihydrate 50 (% by weight) Liquid paraffin 47 Polybutene 1 (a number average molecular weight: 1400) Sodium pyrophosphate 2
- Base material paste Sodium alginate 17 (%by weight) Distilled water 81.97 Xanthan gum 1 Sodium hypochlorite 0.01 Sodium carbonate 0.02 Setting material paste Calcium sulfate hemihydrate 50 (% by weight) Liquid paraffin 33 Polybutene 2 (a number average molecular weight: 1400) Fluoride potassium titanate 5 Magnesium hydroxide 5 Polyoxyethylene alkylether 2 Sodium pyrophosphate 3
- Base material paste Sodium alginate 10 (% by weight) Diatomaceous earth 20 Distilled water 70 Setting material paste Calcium sulfate hemihydrate 50 (% by weight) Liquid paraffin 50
- Base material paste Sodium alginate 7 (% by weight) Diatomaceous earth 20 Distilled water 71 Xanthan gum 2 Setting material paste Calcium sulfate hemihydrate 50 (% by weight) Liquid paraffin 49.5 Polybutene 0.5 (a number average molecular weight: 1400)
- Example 1 Example 2
- Example 3 Example 4 Comparison example 1 Comparison example 2 Fluidity (mm) 45 55 42 53 43 55 42 53 42 43 43 45 Working Time (minute: second) 1:05 2:05 0:55 1:50 1:00 2:00 1:10 2:05 0:45 5 1:10 0:40 1:05 Setting Time (minute: second) 1:30 2:30 1:20 2:20 1:20 2:20 1:30 2:20 1:30 2:10 1:30 2:00 Liquid Separation (Storage Stability) No liquid separation No liquid separation No liquid separation No liquid separation No liquid separation No liquid separation Liquid separation occurred at the upper part of both Liquid separation occurred at the upper part of the base material paste.
- Storage Stability No liquid separation No liquid separation No liquid separation No liquid separation No liquid separation No liquid separation No liquid separation Liquid separation occurred at the upper part of both Liquid separation occurred at the upper part of the base material paste.
- the fluidity can be changed by changing the mixing ratio of the base material paste composed mainly of the alginate and water and the setting material paste composed mainly of the calcium sulfate and the liquid component which is not reacted with the calcium sulfate, when the base material paste and the setting material paste are mixed and kneaded, while the setting time is not largely changed, the sufficient working time can be kept, and the liquid separation does not occur in the setting paste material and base material paste even when it is kept at 60°C for one week.
Abstract
Description
- The present invention relates to a pasty dental alginate impression material composition used for obtaining the impressions of an oral cavity in a dentistry, which comprises a base material paste composed mainly of an alginate and water and a setting material paste composed mainly of calcium sulfate and a liquid component which is not reacted with the calcium sulfate. More particularly, even though the pasty dental alginate impression material composition is a mixture made by mixing the same base material paste and the same setting material paste, fluidity of this composition can be changed by changing a mixing ratio of the base material paste and the setting material paste at the time of kneading. Further, this composition can give the sufficient working time, while it has excellent setting ability, furthermore, the setting time is not delayed, and the liquid separation does not occur during storage.
- In the dentistry, a dental alginate impression material using alginate has been widely used as the impression material for obtaining the impression of the oral cavity at the time of producing a dental prosthesis. As the dental alginate impression material, the following three types have been used. A first type is made by mixing and kneading water and powders composed mainly of alginate, a gelatinizing reactant, a gelatinizing regulator and a filler, to thereby set those, and a second type is made by mixing and kneading alginate, the gelatinizing regulator, the filler and water with a gelatinizing reactant powder. In addition to these two types, as a third type, a material, which is made by mixing and kneading two kinds of pastes of the base material paste and the setting material paste to thereby cure those, has been also used. In the third type, the pasty dental alginate impression material comprises the base material paste and the setting material paste, where the base material paste is generally made by mainly dissolving alginate with water, and adding a filler powder for giving formability and hardness, and the setting material paste mainly comprises calcium sulfate as a setting material of alginate and the liquid component, which is not reacted with the calcium sulfate such as liquid paraffin.
- - In these dental alginate impression materials, the powdery dental alginate impression material made by mixing and kneading powders and water is most widely used. When this impression material is used, it is necessary to measure the powders and water and knead mainly by hands. As for this powdery dental alginate impression material, even though it is complicated, fluidity of the mixture can be changed by changing the mixing ratio of the powders and water in accordance with the clinical case or the preference of an operator. This is a frequently using method for daily clinical, and is one reason why the powdery dental alginate impression material is widely used.
- On the other hand, as the pasty dental alginate impression material, the following material has been used (for example, refer to
Japanese Patent Application Laid Open No. 2002-87922 - However, as for the pasty dental alginate impression material being used now, the fluidity of the mixture cannot be changed in the same composition even when the mixing ratio of the base material paste and the setting material paste is changed. This is the difference of this material from the powdery dental alginate impression material. Therefore, this material cannot be made in the condition having the suitable fluidity in accordance with the clinical case, and as a result of this, it does not have adaptability capable of using for all clinical cases.
- Further, the pasty dental alginate impression material has a problem that the working time is insufficient and an accident in taking impression occurs. The reason why the accident occurs is as follows. If the sufficient working time is kept on clinical, since the pasty dental alginate impression material is set slowly as compared with the powdery dental alginate impression material, the holding time in the mouth becomes long. So, the problem occurs. Furthermore, there is a problem that the fillers in the base material paste are precipitated during storage to thereby make the liquid separation. If the liquid separation occurs, the hardness and the fluidity of a set material are changed during use of it after kneading. As a result of this, the impression becomes easily incomplete.
- A primary objective of the present invention is to solve the problems of the pasty dental alginate impression material comprising the base material paste and the setting material paste, which is used now. The problems to be solved are as follows. The fluidity of the mixture cannot be changed even when the mixing ratio is changed, unlike the powdery dental alginate impression material obtained by mixing and kneading the powders and water. Further, the sufficient operation surplus time cannot be kept due to the setting ability, and the liquid separation occurs during storage due to the precipitation of the filler in the base material paste.
- The earnest work was carried out in order to solve the above-mentioned problems and, as a result of this, the followings were found out. As for the conventional pasty dental alginate impression material, since the filler is contained in the base material paste composed mainly of alginate and water, the liquid separation occurs during storage due to the precipitation of the filler in the base material paste, and the fluidity of the mixture cannot be changed even when the mixing ratio is changed. Then, the followings were found out to complete the present invention. The filler is removed from the base material paste, and the predetermined amount of the specific polysaccharides is added to the base material paste instead of the filler to thereby regulate the fluidity. Then, the fluidity can be changed by changing the mixing ratio of the base material paste and the setting material paste. Further, since the filler is not contained, the problem that the liquid separation occurs due to the precipitation of the filler can be solved. Furthermore, carbonate of sodium or potassium is used in the base material paste as a retarder, and phosphate of sodium or potassium is used in the setting material paste as a retarder. Then, the problem of the operation surplus time can be solved.
- That is, the present invention is a pasty dental alginate impression material composition comprising a base material paste composed mainly of 1-20 % by weight of alginate and water, and a setting material paste composed mainly of 10-60 % by weight of calcium sulfate and a liquid component which is not reacted with the calcium sulfate.
- The base material paste does not contain a powdery filler substantially, but contains 0.01-5 % by weight of carbonate of sodium or potassium as a retarder, and 0.01-15 % by weight of one or more polysaccharides selected from carrageenan, pullulan, curdlan, xanthan gum, gellan gum, pectin, konjak glucomannan, xyloglucan, guar gum, gum Arabic and locust bean gum.
- The setting material paste contains 0.01-10 % by weight of phosphate of sodium or potassium as a retarder, and 0.5-30 % by weight of polybutene.
- Further, the followings were found out. It is preferable that the alginate in the base material paste is one or more kinds of alginate of sodium, potassium, ammonium or triethanolamine. Further, it is preferable that the liquid component, which is not reacted with the calcium sulfate, in the setting material paste is one or more kinds of a group selected from hydrocarbon, fatty alcohol, cyclic alcohol, fatty acid, a salt or an ester of this fatty acid, and a nonaqueous solvent. The hydrocarbon comprises decane, undecane, dodecane, tetradecane, kerosene, 1-octene, cycloheptane, cyclononane, or liquid paraffin. The fatty alcohol comprises 1- hexanol, 1- octanol, citronellol, or oleyl alcohol. The cyclic alcohol comprises benzyl alcohol or meta-cresol . The fatty acid comprises hexanoic acid, octanoic acid, oleic acid or linoleic acid. The nonaqueous solvent comprises polyethyleneglycol or polypropyleneglycol. As for calcium sulfate in the setting material paste, it is preferable to be one or more kinds of anhydrous gypsum, hemihydrate gypsum and dehydrate gypsum. As for polybutene, it is preferable to have number average molecular weight of 300 to 4000. The base material paste may further contain one or more kinds of various inorganic or organic coloring agents, an antiseptic, various disinfectants, and a perfume. Further, the setting material paste may further contain one or more kinds of a pH controlling agent such as magnesium oxide or hydroxide, a surfactant and the fluoride.
- The pasty dental alginate impression material composition according to the present invention is used by mixing and kneading the base material paste and the setting material paste, the fluidity can be changed by changing the mixing ratio of the base material paste and the setting material paste, the sufficient working time can be kept while it has sharp setting and, since the filler is contained in the base material paste, the liquid separation due to the precipitation of the filler does not occur during storage. Thus, this pasty dental alginate impression material composition is excellent.
- As for the alginate used in the base material paste of the pasty dental alginate impression material composition according to the present invention, one or more kinds of a water-soluble salt can be used, where the salt is, for example, alginate of sodium, potassium, ammonium, triethanolamine or the like. Further, the content of these salts is 1-10 % by weight in the base material paste.
- The water used in the base material paste may be ion-exchanged water, distilled water or the like, or may be the water which is disinfected by sodium hypochlorite or the like.
- In the base material paste used for the conventional pasty dental alginate impression material, the filler such as silica, diatomaceous earth or the like is contained in order to control the fluidity of the mixture and suitably keep the hardness of the set material. The fluidity of the mixture can be kept in the fixed state by the filler. However, even when the mixing ratio of the base material paste and the setting material paste is changed for changing the fluidity of the mixture, the fluidity of the mixture is hardly changed. So, in order to change the fluidity of the mixture by changing the mixing ratio of the base material paste and the setting material paste, the filler is removed from the base material paste, and one or more kinds of the polysaccharides selected from carrageenan, pullulan, curdlan, xanthan gum, gellan gum, pectin, konjak glucomannan, xyloglucan, guar gum, gum Arabic and locust bean gum are added. Further, 0.01-5 % by weight of carbonate of sodium or potassium is added as the retarder. Then, the fluidity of the mixture can be suitably kept and also can be changed by changing the mixing ratio of the base material paste and the setting material paste in the same composition in accordance with the clinical case or the preference of an operator.
- The polysaccharides are stable in an alginate aqueous solution and hardly decomposed, so that the viscosity of the base material paste is hardly decreased. In the polysaccharides, carrageenan is one kind of seaweed polysaccharides and an acid polymer comprising galactose containing a sulfuric acid group or an anhydro group. Further, the pullulan, the curdlan, the xanthan gum and the gellan gum are obtained by separating and refining the polysaccharides produced by a microorganism such as a yeast or the like. In these polysaccharides, the xanthan gum is the most useful and is mucopolysaccharides produced by a germ separated from leaf surface of cabbage. Furthermore, the polysaccharides, such as pectin, konjak glucomannan, xyloglucan, guar gum, gum Arabic and locust bean gum are extracted from a bark, seeds, leaves and stalks, an underground stem or fruit of a plant. It is necessary that 0.01-15 % by weight of one or more kinds of polysaccharides selected from carrageenan, pullulan, curdlan, xanthan gum, gellan gum, pectin, konjak glucomannan, xyloglucan, guar gum, gum Arabic and locust bean gum are contained in the base material paste composed mainly of the alginate and water. If the content is less than 0.01 % by weight, the viscosity of the base material paste is too low, so that it can not be used as the impression material. If content is more than 15 % by weight, the viscosity becomes too high, so that it is hardly kneaded to cause the problem in the taking impression operation. Preferably, the content is 0.1 to 3 % by weight.
- As for calcium sulfate used in the setting material paste of the pasty dental alginate impression material composition according to the present invention, more particularly, the anhydrous gypsum, the hemihydrate gypsum, the dehydrate gypsum or the like can be used.
- As the liquid component which is not reacted with the calcium sulfate used in the setting material paste, the hydrocarbon, a fatty alcohol, a cyclic alcohol, a fatty acid, a salt or an ester of this fatty acid, and a nonaqueous solvent can be used. More particularly, the hydrocarbon such as decane, undecane, dodecane, tetradecane, kerosene, 1-octene, cycloheptane, cyclononane or liquid paraffin, the fatty alcohol such as 1- hexanol, 1- octanol, citronellol or oleyl alcohol, the cyclic alcohol such as benzyl alcohol or meta-cresol, the fatty acid such as hexanoic acid, octanoic acid, oleic acid or linoleic acid, a salt or an ester of these fatty acids and the nonaqueous solvent such as polyethyleneglycol or polypropyleneglycol are suitably used.
- As for the polybutene used in the setting material paste, when the phosphate of sodium or potassium described below is added, the curing ability is increased and the sufficient working time can be kept. Further, polybutene prevents occurrence of the liquid separation due to the precipitation of the calcium sulfate in the setting material paste, so that it can prevent decrease of the setting ability. The polybutene is a liquid polymer where isobutylene as a base material and a few 1-butene are copolymerized. Polybutene having the number average molecular weight of 300 to 4000 is generally used. It is necessary that 0.5-30 % by weight of the polybutene is contained in the setting material paste. If the content is less than 0.5 % by weight, the liquid component is separated. If the content is more than 30 % by weight, the setting time becomes remarkably long under coexistence of the phosphate of sodium or potassium, and the hardness of the set material is decreased. Preferably, the content is 0.5 to 15 % by weight.
- In order to obtain the excellent setting ability, the pasty dental alginate impression material composition according to the present invention contains 0.01-5 % by weight of carbonate of sodium or potassium in the base material paste, and 0.01-10 % by weight of phosphate of sodium or potassium in the setting material paste, where the base material paste is composed mainly of 1-20 % by weight of alginate and water, and the setting material paste is composed mainly of 10-60 % by weight of calcium sulfate and the liquid component which is not reacted with the calcium sulfate. By this combination, the sharp setting ability can be obtained while the sufficient working time is obtained. On the contrary, when the phosphate of sodium or potassium is contained in the base material paste and the carbonate of sodium or potassium is contained in the setting material paste, the above effects cannot be obtained.
- If blending amounts of the carbonate of sodium or potassium and the phosphate of sodium or potassium are less than 0.01 % by weight with respect to each paste, the setting time is too short. Further, if the carbonate of sodium or potassium is more than 5 % by weight or the phosphate of sodium or potassium is more than 10 % by weight, the working time is too long. Thus, in both cases, these pastes cannot be used as the dental impression material.
- The pasty dental alginate impression material composition according to the present invention may, in the range in which the characteristics are not lost, contain various kinds of inorganic or organic coloring agents, an antiseptic, various kinds of disinfectants, a perfume or the like, in the base material paste thereof . Further, it may contain magnesium oxide, a pH controlling agent such as magnesium oxide or hydroxide or the like, a surfactant for increasing the mixing ability with the base material paste, a fluoride for improving a model surface.
- Hereinafter, the present invention is described concretely with examples, but the present invention is not limited to these examples.
-
Base material paste Sodium alginate 13 (% by weight) Distilled water 74.98 Locust bean gum 12 Sodium carbonate 0.02 Setting material paste Calcium sulfate hemihydrate 50 (% by weight) Liquid paraffin 49 Polybutene 0.5 (a number average molecular weight: 3900) Sodium phosphate 0.5 - Each of the above pastes was sufficiently mixed by a mixer to thereby obtain a pasty dental alginate impression material composition. Then, the fluidity was measured by the steps of kneading the base material paste and the setting material paste at the volume ratio of 1 : 1 and 3 : 1; inserting a pushing out rod into a pushing out ring from the lower side to the position of the reference line, filling the kneaded sample in the pushing out ring; eliminating an excess heaped above the upper surface of the pushing out ring by a spatula; reversing the pushing out ring after 30 seconds; pushing out the sample gradually and perpendicularly on an acrylics board by the pushing out rod; measuring a maximum part and a minimum part of a spread of the sample by a caliper when it isgelled; and thereby measuring the fluidity from an average of the measured maximum parts and minimum parts. The pushing out rod had the outer diameter of 35 mm, a reference line on the position of 20 mm from the upper side, and a cellophane film adhered thereon. The pushing out ring had the inner diameter of 35 mm and the height of 50 mm. Then, in each ratio, the working time was measured according to the ISO 1563, and the setting time (the gelling time) was measured according to the ISO 1563. After the base material paste was filled in an aluminum packaging material and kept at 60°C for one week, a state of the liquid separation was observed visually. These results were shown in Table 1 collectively.
-
Base material paste Sodium alginate 10 (% by weight) Distilled water 89.78 Konjak glucomannan 0.02 Sodium carbonate 0.2 Setting material paste Calcium sulfate hemihydrate 60 (% by weight) Liquid paraffin 5 Polybutene 28 (a number average molecular weight: 390) Sodium phosphate 7 - Each of the above pastes was sufficiently mixed by a mixer to thereby obtain a pasty dental alginate impression material composition. The same test as that of Example 1 was carried out, and these results were shown in Table 1.
-
Base material paste Sodium alginate 7 (% by weight) Distilled water 91.3 Xanthan gum 1.5 Sodium carbonate 0.2 Setting material paste Calcium sulfate hemihydrate 50 (% by weight) Liquid paraffin 47 Polybutene 1 (a number average molecular weight: 1400) Sodium pyrophosphate 2 - Each of the above pastes was sufficiently mixed by a mixer to thereby obtain a pasty dental alginate impression material composition. The same test as that of Example 1 was carried out, and these results were shown in Table 1.
-
Base material paste Sodium alginate 17 (%by weight) Distilled water 81.97 Xanthan gum 1 Sodium hypochlorite 0.01 Sodium carbonate 0.02 Setting material paste Calcium sulfate hemihydrate 50 (% by weight) Liquid paraffin 33 Polybutene 2 (a number average molecular weight: 1400) Fluoride potassium titanate 5 Magnesium hydroxide 5 Polyoxyethylene alkylether 2 Sodium pyrophosphate 3 - Each of the above pastes was sufficiently mixed by a mixer to thereby obtain a pasty dental alginate impression material composition. The same test as that of Example 1 was carried out, and these results were shown in Table 1.
-
Base material paste Sodium alginate 10 (% by weight) Diatomaceous earth 20 Distilled water 70 Setting material paste Calcium sulfate hemihydrate 50 (% by weight) Liquid paraffin 50 - Each of the above pastes was sufficiently mixed by a mixer to thereby obtain a pasty dental alginate impression material composition. The same test as that of Example 1 was carried out, and these results were shown in Table 1.
-
Base material paste Sodium alginate 7 (% by weight) Diatomaceous earth 20 Distilled water 71 Xanthan gum 2 Setting material paste Calcium sulfate hemihydrate 50 (% by weight) Liquid paraffin 49.5 Polybutene 0.5 (a number average molecular weight: 1400) - Each of the above pastes was sufficiently mixed by a mixer to thereby obtain a pasty dental alginate impression material composition. The same test as that of Example 1 was carried out, and these results were shown in Table 1.
Table 1 Example 1 Example 2 Example 3 Example 4 Comparison example 1 Comparison example 2 Fluidity (mm) 45 55 42 53 43 55 42 53 42 43 43 45 Working Time (minute: second) 1:05 2:05 0:55 1:50 1:00 2:00 1:10 2:05 0:45 5 1:10 0:40 1:05 Setting Time (minute: second) 1:30 2:30 1:20 2:20 1:20 2:20 1:30 2:20 1:30 2:10 1:30 2:00 Liquid Separation (Storage Stability) No liquid separation No liquid separation No liquid separation No liquid separation Liquid separation occurred at the upper part of both Liquid separation occurred at the upper part of the base material paste. - As clearly known from the Table 1, in the pasty dental alginate impression material composition according to the present invention, the fluidity can be changed by changing the mixing ratio of the base material paste composed mainly of the alginate and water and the setting material paste composed mainly of the calcium sulfate and the liquid component which is not reacted with the calcium sulfate, when the base material paste and the setting material paste are mixed and kneaded, while the setting time is not largely changed, the sufficient working time can be kept, and the liquid separation does not occur in the setting paste material and base material paste even when it is kept at 60°C for one week.
Claims (7)
- A pasty dental alginate impression material composition, comprising a base material paste composed mainly of 1-20 % by weight of alginate and water, and a setting material paste composed mainly of 10-60 % by weight of calcium sulfate and a liquid component which is not reacted with the calcium sulfate,
wherein said base material paste does not contain a filler substantially, but contains 0.01-5 % by weight of carbonate of sodium or potassium as a retarder, and 0.01-15 % by weight of one or more polysaccharides selected from carrageenan, pullulan, curdlan, xanthan gum, gellan gum, pectin, konjak glucomannan, xyloglucan, guar gum, gum Arabic and locust bean gum, and
wherein said setting material paste contains 0.01-10 % by weight of phosphate of sodium or potassium as a retarder, and 0.5-30 % by weight of polybutene. - The pasty dental alginate impression material composition as claimed in claim 1,
wherein the alginate in the base material paste is one or more kinds of a alginate of sodium, potassium, ammonium or triethanolamine. - The pasty dental alginate impression material composition as claimed in claim 1 or 2,
wherein the liquid component, which is not reacted with the calcium sulfate, in the setting material paste is one or more kinds of a group selected from hydrocarbon, fatty alcohol, cyclic alcohol, a fatty acid, a salt or an ester of this fatty acid, and a nonaqueous solvent,
wherein the hydrocarbon comprises decane, undecane, dodecane, tetradecane, kerosene, 1-octene, cycloheptane, cyclononane, or liquid paraffin,
wherein the fatty alcohol comprises 1- hexanol, 1-octanol, citronellol, or oleyl alcohol,
wherein the cyclic alcohol comprises benzyl alcohol or meta-cresol,
wherein the fatty acid comprises hexanoic acid, octanoic acid, oleic acid or linoleic acid, and
wherein the nonaqueous solvent comprises polyethyleneglycol or polypropyleneglycol. - The pasty dental alginate impression material composition as claimed in any one of claims 1 to 3,
wherein the calcium sulfate in the setting material paste is one or more kinds of anhydrous gypsum, hemihydrate gypsum and dehydrate gypsum. - The pasty dental alginate impression material composition as claimed in any one of claims 1 to 4,
wherein the number average molecular weight of the polybutene is 300 to 4000. - The pasty dental alginate impression material composition as claimed in any one of claims 1 to 5,
wherein one or more kinds of various inorganic or organic coloring agents, an antiseptic, various disinfectants, and a perfume are further contained in the base material paste. - The pasty dental alginate impression material composition as claimed in any one of claims 1 to 6,
wherein one or more kinds of a pH controlling agent such as magnesium oxide or hydroxide, a surfactant and the fluoride are further contained in the setting material agent.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005090875A JP4823547B2 (en) | 2005-03-28 | 2005-03-28 | Paste-like dental alginate impression material composition |
Publications (2)
Publication Number | Publication Date |
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EP1707178A1 true EP1707178A1 (en) | 2006-10-04 |
EP1707178B1 EP1707178B1 (en) | 2011-07-13 |
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EP06005746A Active EP1707178B1 (en) | 2005-03-28 | 2006-03-21 | Pasty dental alginate impression material composition |
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US (1) | US20060213396A1 (en) |
EP (1) | EP1707178B1 (en) |
JP (1) | JP4823547B2 (en) |
AT (1) | ATE516006T1 (en) |
AU (1) | AU2006201282A1 (en) |
Cited By (10)
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EP1982688A2 (en) * | 2006-09-06 | 2008-10-22 | GC Corporation | Dental alginate impression material composition |
EP2049067A2 (en) * | 2006-08-08 | 2009-04-22 | 3M Innovative Properties Company | Curable dental retraction composition, method of production and use thereof |
WO2011095812A3 (en) * | 2010-02-04 | 2012-03-22 | Cytochroma Developments Inc. | Composition comprising mixed metal compounds and xanthan |
US9066917B2 (en) | 2009-08-03 | 2015-06-30 | Cytochroma Development Inc. | Mixed metal compound |
US9168270B2 (en) | 2006-01-31 | 2015-10-27 | Opko Ireland Global Holdings, Ltd. | Water-insoluble, iron-containing mixed metal, granular material |
US9242869B2 (en) | 1997-09-19 | 2016-01-26 | Opko Ireland Global Holdings, Ltd. | Metal compounds mixed or sulphated, as phosphate binders |
US10155040B2 (en) | 2007-10-16 | 2018-12-18 | Opko Ireland Global Holdings, Ltd. | Mixed metal compounds for treatment of hyperphosphataemia |
US10201501B2 (en) | 2007-07-27 | 2019-02-12 | Opko Ireland Global Holdings, Ltd. | Mixed metal compounds used as antacids |
CN114867446A (en) * | 2019-12-26 | 2022-08-05 | 株式会社Gc | Dental impression material and combined impression material |
EP4311536A1 (en) * | 2022-07-29 | 2024-01-31 | GC Corporation | Dental separation material |
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US8106109B2 (en) * | 2007-07-20 | 2012-01-31 | Coltene Whaledent Ag | Dental filling material |
EP2036533A1 (en) | 2007-09-14 | 2009-03-18 | 3M Innovative Properties Company | Curable Dental Retraction Composition, Method of Production and Use thereof |
US7918929B2 (en) * | 2008-02-19 | 2011-04-05 | John Christopher Sunnucks | Water erodible denture adhesive |
CN102811696A (en) | 2010-04-22 | 2012-12-05 | 德山齿科株式会社 | Alginic acid-containing aqueous composition, alginate impression material for dental applications, and substrate for alginate impression material for dental applications |
US9125818B2 (en) | 2010-11-10 | 2015-09-08 | Tokuyama Dental Corporation | Alginate impression material for dental use and curing agent paste used therefor |
WO2017163491A1 (en) | 2016-03-22 | 2017-09-28 | 株式会社ジーシー | Alginate impression material for dental use |
CN106105587B (en) * | 2016-06-29 | 2018-02-02 | 富源县金地魔芋种业有限公司 | A kind of method of konjaku open country conservation |
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JP2022099746A (en) * | 2020-12-23 | 2022-07-05 | スリーエム イノベイティブ プロパティズ カンパニー | Curing agent for alginate-based dental impression material, alginate-based dental impression material, and impression material kit |
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US9242869B2 (en) | 1997-09-19 | 2016-01-26 | Opko Ireland Global Holdings, Ltd. | Metal compounds mixed or sulphated, as phosphate binders |
US9168270B2 (en) | 2006-01-31 | 2015-10-27 | Opko Ireland Global Holdings, Ltd. | Water-insoluble, iron-containing mixed metal, granular material |
US9907816B2 (en) | 2006-01-31 | 2018-03-06 | Opko Ireland Global Holdings, Ltd. | Water-insoluble, iron-containing mixed metal, granular material |
EP2049067B1 (en) * | 2006-08-08 | 2017-06-07 | 3M Innovative Properties Company | Curable dental retraction composition, method of production and use thereof |
EP2049067A2 (en) * | 2006-08-08 | 2009-04-22 | 3M Innovative Properties Company | Curable dental retraction composition, method of production and use thereof |
US8142562B2 (en) | 2006-08-08 | 2012-03-27 | 3M Innovative Properties Company | Curable dental retraction composition, method of production and use thereof |
EP1982688A3 (en) * | 2006-09-06 | 2010-05-26 | GC Corporation | Dental alginate impression material composition |
EP1982688A2 (en) * | 2006-09-06 | 2008-10-22 | GC Corporation | Dental alginate impression material composition |
US10201501B2 (en) | 2007-07-27 | 2019-02-12 | Opko Ireland Global Holdings, Ltd. | Mixed metal compounds used as antacids |
US10155040B2 (en) | 2007-10-16 | 2018-12-18 | Opko Ireland Global Holdings, Ltd. | Mixed metal compounds for treatment of hyperphosphataemia |
US9314481B2 (en) | 2009-08-03 | 2016-04-19 | Opko Ireland Global Holdings, Ltd. | Method |
US9066917B2 (en) | 2009-08-03 | 2015-06-30 | Cytochroma Development Inc. | Mixed metal compound |
US9566302B2 (en) | 2010-02-04 | 2017-02-14 | Opko Ireland Global Holdings, Ltd. | Composition comprising mixed metal compounds and xanthan gum |
WO2011095812A3 (en) * | 2010-02-04 | 2012-03-22 | Cytochroma Developments Inc. | Composition comprising mixed metal compounds and xanthan |
CN114867446A (en) * | 2019-12-26 | 2022-08-05 | 株式会社Gc | Dental impression material and combined impression material |
EP4082512A4 (en) * | 2019-12-26 | 2023-12-06 | GC Corporation | Dental impression material and combined impression material |
EP4311536A1 (en) * | 2022-07-29 | 2024-01-31 | GC Corporation | Dental separation material |
Also Published As
Publication number | Publication date |
---|---|
US20060213396A1 (en) | 2006-09-28 |
JP2006273720A (en) | 2006-10-12 |
ATE516006T1 (en) | 2011-07-15 |
EP1707178B1 (en) | 2011-07-13 |
JP4823547B2 (en) | 2011-11-24 |
AU2006201282A1 (en) | 2006-10-12 |
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